what is the advantage of interface over abstract classes?

Question

In Java, abstract classes give the ability to define both concrete and abstract methods whereas interfaces only give the ability to implement abstract methods. I believe overrid

Answer 1

The facts are-

1. Java doesn't support multiple inheritance
2. Multiple interfaces can be implemented
3. Few methods in an abstract class may be implemented

These facts can be used to tilt the advantage in favor of interfaces or abstract classes.

If there are more than one behavior that a class must share with other classes, interfaces win. If a method definition has to be shared/ overridden with other classes, abstract classes win.